- its price is just;
- sharp and clear images with no colour aberrations;
- the two way Image Stabilization system allows panning
- I use it in a Canon 50D so with its crop sensor (1.6 crop) the 300mm equals a real 480mm tele;
- not easy to use a Circular Polariser filter due to the rotation of the front lenses while focusing ... but there is an obvious turn around method - focus first and adjust the adequate polarising effect afterwards;
- with the original Canon hood we have no easy access to the Polariser but for some extra money a rubber retractable hood the problem is solved.